*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a{
  display: block;
  color: inherit;
  text-decoration: none;
}
img{
  display: block;
  width: 100%;
}
ul{
  list-style: none;
}

.clearfix::after{
  content: "";
  display: block;
  height: 0;
  line-height: 0;
  visibility: hidden;
  clear: both;
}